Seattle Sounders FC is an American professional soccer club based in Seattle, Washington that competes in Major League Soccer (MLS). Sounders FC was established on November 13, 2007, as an MLS expansion team, making it the 15th team in the league. Fans chose the Sounders name through an online poll in 2008, making the Seattle Sounders FC the third Seattle soccer club to share the name. The list encompasses the major honors won by Seattle Sounders FC, records set by the club, their managers and their players. Honors Seattle Sounders' first trophy was the 2009 U.S. Open Cup, which they won against D.C. United. The club also won the Heritage Cup for the first time the following year against the San Jose Earthquakes. National competitions MLS Cup Winners (2): 2016, 2019 Runners-up (2): 2017, 2020 Supporters' Shield Winners (1): 2014 Runners-up (1): 2011 U.S. Open Cup Winners (4): 2009, 2010, 2011, 2014 Runners-up (1): 2012 Continental competitions CONCACAF Champions League Winners (1): 2022 Leagues Cup Runners-up (1): 2021 Friendly trophies and other awards Cascadia Cup: 5 2011, 2015, 2018, 2019, 2021 Heritage Cup: 8 2010, 2011, 2013, 2016, 2017, 2018, 2019, 2021 Community Shield: 2 2011, 2012 Desert Diamond Cup: 1 2013 MLS Fair Play Award: 1 2017 CCL Fair Play Award: 1 2022 Player records Goals scored Competitive, professional matches only. As of Feb 27th, 2023 Assists MLS Competitive, professional matches only. As of Oct 9th, 2022 Appearances All statistics are correct . Youngest first-team player: Danny Leyva, 16 years old (v. Montreal Impact, Major League Soccer, June 5, 2019) Oldest All statistics are correct . Oldest first-team player: Kasey Keller, 41 years, 11 months, 8 days (v. Real Salt Lake, Major League Soccer, November 3, 2011) Goalscorers In a season All statistics are correct . Most MLS goals in a season: 17, Obafemi Martins (2014) Most all competition goals in a season: 19, Obafemi Martins (2014) Most by a rookie in a season: 12, Jordan Morris (2016) In a single match All statistics are correct . Most goals in a single match: 3, Blaise Nkufo (v. Columbus Crew; Columbus Crew Stadium; September 18, 2010) 3, Lamar Neagle (v. Columbus Crew; CenturyLink Field; August 27, 2011) 3, David Estrada (soccer) (v. Toronto FC: CenturyLink Field; March 17, 2012) 3, Fredy Montero (v. Chivas USA: Home Depot Center; August 25, 2012) 3, Clint Dempsey (v. Portland Timbers: Providence Park; April